本书给出了一系列行之有效的整洁代码操作实践，并辅以来自现实项目的正反两面的范例，以帮助读者编写干净的代码，提高代码质量。-The book gives a series of effective practice of tidy code operation, supplemented by both positive and negative examples from real projects, in order to help the reader to write clean code, improve code quality.